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Proceedings Paper

Test and measurement on quantum key distribution systems
Author(s): Akihisa Tomita
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Paper Abstract

As in conventional communication systems, test and measurement play important roles in quantum key distribution (QKD) systems. Besides the observation that QKD protocols estimate the bound of information leakage from the measurement results on the transmission channel, test of quantum apparatus is necessary to ensure that the assumptions behind the security proof are satisfied in practice. Moreover, precise characterization of the device imperfection improves the final key rate, because one can specify the effect of the errors originated from the devices and sbtract it. However, careful consideration is required to guarantee that the test and measurement procedure will not open a loop-hole to the eavesdroppers.

Paper Details

Date Published: 26 January 2009
PDF: 7 pages
Proc. SPIE 7236, Quantum Communications Realized II, 72360K (26 January 2009); doi: 10.1117/12.809879
Show Author Affiliations
Akihisa Tomita, ERATO-SORST, JST (Japan)
NEC Corp. (Japan)

Published in SPIE Proceedings Vol. 7236:
Quantum Communications Realized II
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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